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128901-47-3

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128901-47-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128901-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,0 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128901-47:
(8*1)+(7*2)+(6*8)+(5*9)+(4*0)+(3*1)+(2*4)+(1*7)=133
133 % 10 = 3
So 128901-47-3 is a valid CAS Registry Number.

128901-47-3Downstream Products

128901-47-3Relevant articles and documents

Process for the preparation of haloalkyllactones

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, (2008/06/13)

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AN EFFICIENT SYNTHESIS OF THE γ-LACTONE CORRESPONDING TO A HYDROXYETHYLENE DIPEPTIDE ISOSTERE USING STEREOSELECTIVE BROMOLACTONISATION OF A CHIRAL ACYLOXAZOLIDINONE

Bradbury, Robert H.,Revill, John M.,Rivett, Janet E.,Waterson, David

, p. 3845 - 3848 (2007/10/02)

An efficient synthetic route is described to the γ-lactone 11 corresponding to the dipeptide isostere (2S,4S,5S)-5-amino-6-cyclohexyl-4-hydroxy-2-isopropylhexanoic acid, in which stereochemical control is achieved by participation of chiral acyloxazolidinone 6 in a stereoselective bromolactonisation reaction.

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